unsigned short chosenport = 0;
    struct addrinfo *addrlist = NULL;
    struct addrinfo *addrPtr;	/* Socket address to listen on. */
    TcpState *statePtr = NULL;	/* The returned value. */
    char channelName[SOCK_CHAN_LENGTH];
    u_long flag = 1;		/* Indicates nonblocking mode. */
    const char *errorMsg = NULL;
    ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);

    if (TclpHasSockets(interp) != TCL_OK) {
	return NULL;
    }

    /*
     * Check that WinSock is initialized; do not call it if not, to prevent

error:
    if (addrlist != NULL) {
	freeaddrinfo(addrlist);
    }

    if (statePtr != NULL) {
	ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey);

	statePtr->acceptProc = acceptProc;
	statePtr->acceptProcData = acceptProcData;
	sprintf(channelName, SOCK_TEMPLATE, statePtr);
	statePtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName,
		statePtr, 0);
	/*